[Devel] Re: [PATCH 2/4] Block I/O tracking

[KAMEZAWA Hiroyuki]

On Tue, 18 Mar 2008 20:34:22 +0900 (JST)
Hirokazu Takahashi <taka at valinux.co.jp> wrote:

>
> > And, blist seems to be just used for force_empty.
> > Do you really need this ? no alternative ?
> 
> I selected this approach because it was the simplest way for the
> first implementation.
> 
> I've been also thinking about what you pointed.
> If you don't mind taking a long time to remove a bio cgroup, it will be
> the easiest way that you can scan all pages to find the pages which
> belong to the cgroup and delete them. It may be enough since you may
> say it will rarely happen. But it might cause some trouble on machines
> with huge memory.
> 
Hmm, force_empty itself is necessary ?

Thanks,
-Kame

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